--- product_id: 500588267 title: "Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White" brand: "auxbeam" price: "€ 41.72" currency: EUR in_stock: true reviews_count: 13 category: "Auxbeam" url: https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k store_origin: SK region: Slovakia --- # 5.5W energy-saving power 4000 lumens ultra-bright output 50,000 hours lifespan Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White **Brand:** auxbeam **Price:** € 41.72 **Availability:** ✅ In Stock ## Summary > 🚗 Brighten Your Backup Game with Zero Compromise! ## Quick Answers - **What is this?** Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White by auxbeam - **How much does it cost?** € 41.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k) ## Best For - auxbeam enthusiasts ## Why This Product - Trusted auxbeam brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play in 5 Minutes:** True 1:1 halogen size and non-polarity design means effortless installation on 99% of vehicles—no mechanic needed. - • **Canbus Error-Free Compatibility:** Seamlessly integrates with most European, American, Japanese, and Korean vehicles—no annoying dashboard warnings. - • **360° Dual HD Glass Lens Clarity:** Advanced optics deliver an 80% wider viewing angle with zero dark spots, ensuring full-range illumination behind your vehicle. - • **Illuminate with 400% More Brilliance:** Experience 4000 lumens of crisp 6500K xenon white light that outshines standard bulbs by 4X for safer, confident reversing. - • **Built to Last with Aviation-Grade Cooling:** Rugged aluminum body and intelligent driver chip keep your bulbs cool and interference-free for up to 50,000 hours. ## Overview Auxbeam 912 921 LED Reverse Light Bulbs deliver 4000 lumens of 6500K xenon white light with 400% brightness boost over halogen bulbs, consuming just 5.5W for 75% energy savings. Featuring dual HD glass lenses for 360° illumination and a 50,000-hour lifespan with aviation-grade cooling, these bulbs install in minutes with plug-and-play ease and are Canbus error-free for broad vehicle compatibility. ## Description Buy Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White | CANbus Error Free, Dual Projector Design, Fits 912 921 906 904 922 W16W T15, 50,000 Hrs Lifespan, Plug & Play: Turn Signal Bulbs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Fit 2011 F150. Seems Descent. - Long write up, hopefully this helps you if you're considering these. Only been installed for a couple weeks so can't comment on longevity. I checked for EMI by tuning to a weak radio station and putting the tuck in reverse to turn on the lights. There was no interference. (Side note...I have the Putco light bar bumper grill insert which creates EMI. Unhappy it has EMI for what it cost. I have 3" Vision X CG2 Light Cannon's and they are clean, no EMI) This Auxbeam bulbs's light output is definitely better than stock. Reasonable for the ~$22 cost. I didn't measure the light but I doubt they are 4000 lumens. Incandescent 921 bulbs are around 260, the effective light behind the truck is not 7 times brighter in my opinion (assuming 2000 each, 4000 for the pair). I have tinted windows so I need more than these bulbs can supply. (I wasn't expecting 4000 lumems - I assumed it was marketing baloney) I didn't want a higher power bulb since I was concerned about heat. Bulbs that replace the entire socket so they can have heat sinks external to the housing may be OK, but I was concerned the light pattern could be sub-optimal since your limited by the stock housing. Instead, I am going to add the Morimoto backup light boost bar. That seems a better option for ~$80. Review: A step up - Very pleased with these. Alot brighter then factory taillights. No flickering of lights Running 2018 gmc yukon denali. ## Features - UP TO 4X BRIGHTER FOR SAFER REVERSING: Auxbeam 921 LED bulb reverse light features 7 high-intensity 3030 SMD chips and 18 stable 4014 SMD chips, delivering up to 4000LM of crisp 6500K white light. Instant 0.1-second illumination provides clearer rear visibility when backing up at night, while the efficient 5.5W design uses less power than standard halogen bulbs. - DUAL PROJECTOR FOR WIDER 360° ILLUMINATION: Unlike a standard 921 bulb, the advanced dual HD glass projector design helps focus and distribute light more evenly for up to an 80% wider viewing angle. Full-range 360° illumination reduces dark spots and improves visibility around the rear of your vehicle for clearer, more confident reversing. - 5-MINUTE PLUG & PLAY INSTALLATION: Built with a compact 1:1 halogen-size design and non-polarity setup, these 921 LED reverse light bulbs install directly into the original socket with no complicated wiring. Compatible with T15, 912, 921, 922, 906, 904, 902, W16W, 916 and other compatible sockets. Please verify your original bulb size before purchase. - 50,000-HOUR LONG-LASTING PERFORMANCE: Aviation-grade aluminum construction quickly dissipates heat to help maintain stable brightness and extend bulb life. The built-in Elecsy-X intelligent IC driver regulates voltage and temperature while helping reduce electrical interference, providing reliable performance for up to 50,000 hours. - CANBUS READY FOR MOST VEHICLES: Built-in intelligent decoding technology helps the 921 LED bulb work with most CANBUS systems and reduces common dashboard error messages or warning lights. Designed for a wide range of American, European, Japanese and Korean vehicles, making it an ideal 921 reverse light bulb upgrade for everyday driving. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BLNM954J | | Auto Part Position | Rear | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #5,080 in Automotive ( See Top 100 in Automotive ) #16 in Automotive Back Up Light Bulbs | | Brand | Auxbeam | | Brand Name | Auxbeam | | Brightness | 4000 lm | | Color | White | | Color Temperature | 6500 Kelvin | | Customer Reviews | 4.6 out of 5 stars 811 Reviews | | Fit Type | Universal Fit | | Item Highlight | CANbus Error Free, Dual Projector Design, Fits 912 921 906 904 922 W16W T15, 50,000 Hrs Lifespan, Plug & Play | | Light Output Maximum | 4000 lumens | | Light Source Type | LED | | Manufacturer | Auxbeam | | Manufacturer Part Number | XD000515 | | Manufacturer Warranty Description | 1 year warranty | | Model Number | XD000515 | | Number of Items | 2 | | Operating Life | 50000 hours | | Package Quantity | 1 | | Specific Uses For Product | Backup Reverse Light | | Unit Count | 2 Count | | Wattage | 5.5 watts | ## Product Details - **Brand:** Auxbeam - **Brightness:** 4000 lm - **Color Temperature:** 6500 Kelvin - **Light Source Type:** LED - **Specific Uses For Product:** Backup Reverse Light ## Images ![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 1](https://m.media-amazon.com/images/I/71Xj6kbzDsL.jpg) ![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 2](https://m.media-amazon.com/images/I/71sP2q6LprL.jpg) ![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 3](https://m.media-amazon.com/images/I/615w8if2bDL.jpg) ![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 4](https://m.media-amazon.com/images/I/71JAYXHdTwL.jpg) ![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 5](https://m.media-amazon.com/images/I/71rUhoqgBZL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: The bulbs hyper flash or have an error warning on dashboard, how do I fix it?** A: Load resistors may be required to solve the issue, you can search "50w 6ohm load resistors" on Amazon, or reach us for them. **Q: Amazon says it fit, but actually no, how do I do?** A: You can leave a question in 'Customer questions & answers' on the product page, or reach us through Amazon, we will check if we have the correct one for you. **Q: I don't know if the bulbs fit my car?** A: You can use the "amazonconfirmfit" on the product page to check if the part number is right. Enter your car model and year then it will shows if the bulbs will fit your car and the applicable locations. **Q: One of my bulbs is defective, can I get a replacement?** A: Yes, you can send a mail to us through Amazon to get replacement. If you don't know how to reach us, you can leave a question in 'Customer questions & answers' on the product page, we will answer you there. **Q: The item delivered didn't work properly or not fit for my project, what can I do?** A: Please reach us for more details then we can confirm the problem for you. If you don't know how to reach us, you can leave a question in 'Customer questions & answers' on the product page, we will answer you there. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fit 2011 F150. Seems Descent. *by C***H on February 26, 2025* Long write up, hopefully this helps you if you're considering these. Only been installed for a couple weeks so can't comment on longevity. I checked for EMI by tuning to a weak radio station and putting the tuck in reverse to turn on the lights. There was no interference. (Side note...I have the Putco light bar bumper grill insert which creates EMI. Unhappy it has EMI for what it cost. I have 3" Vision X CG2 Light Cannon's and they are clean, no EMI) This Auxbeam bulbs's light output is definitely better than stock. Reasonable for the ~$22 cost. I didn't measure the light but I doubt they are 4000 lumens. Incandescent 921 bulbs are around 260, the effective light behind the truck is not 7 times brighter in my opinion (assuming 2000 each, 4000 for the pair). I have tinted windows so I need more than these bulbs can supply. (I wasn't expecting 4000 lumems - I assumed it was marketing baloney) I didn't want a higher power bulb since I was concerned about heat. Bulbs that replace the entire socket so they can have heat sinks external to the housing may be OK, but I was concerned the light pattern could be sub-optimal since your limited by the stock housing. Instead, I am going to add the Morimoto backup light boost bar. That seems a better option for ~$80. ### ⭐⭐⭐⭐⭐ A step up *by T***E on July 1, 2026* Very pleased with these. Alot brighter then factory taillights. No flickering of lights Running 2018 gmc yukon denali. ### ⭐⭐⭐⭐⭐ Auxbeam lights *by P***A on August 9, 2026* They are amazing bright, i only buy auxbeam lights, they are the best to me... i will sure buy these again ! ## Frequently Bought Together - Auxbeam 912 921 LED Bulb for Backup Reverse Light Bulbs, 4000 Lumens 400% Brighter Super Bright Canbus Error Free 906 904 922 W16W T15 LED Bulbs with Double Projectors, 6500K White, Pack of 2 - Auxbeam Upgraded 194 LED Bulbs White,400% Brighter Extremely Bright Canbus Error Free 168 2825 T10 W5W LED Light Bulbs for License Plate Lights Interior Lights Dome Map Light, 30-SMD, Pack of 2 - Auxbeam T25 3156 3157 LED Bulbs, 6500K White, Super Bright 4114 3057 4157 3457 4057 LED Backup Reverse Lights for Cars Trucks Motorcycles, 3030-SMD 12V, Pack of 2 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k](https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-09-02*